extern void gotoxy(int x, int y);
extern void imprimirEspaco(int n);
extern void centraliza( char mensagem[], int x1,  int x2, int y);
extern void corCaracteres(int n);
extern void corFundo(int n);
extern void corFundoECaractere( int corFund, int corLetr);
extern void corPadrao();
extern int obterCodigoDaCorCaracteres(int n);
extern int obterCodigoCorFundo(int n);
extern void janela( char mensagem[], int x1, int y1, int x2, int y2 );
extern void caixa(int x1, int y1, int x2, int y2);
extern int getch(void);
